Improved method of



llNTTnn STATES PATENT Trice.

WILLIAM LOUGHR-IDGE, OF WEVERTON, MARYLAND.

IYVIPROVED METHOD OF APPLYING STEAM-POWER T0 CAR-BRAKES.

Specification forming part of Letters Patent No. ll, dated April 19, 1364.

CASE B.

" To all whom it may concern:

"` :d SBe itknown that I, WILLIAM LOUGHRIDGE, ofWeverton, in the county of Washington and StatefofiMaryland, have invented a new p "d `s"eful`iImprovement in Applying Steamand Ido herebydeclare xn er 1` thejdesired i `press- .i ietsamebe greater or as t i `ure l constant, whether less! i i The invention also consists in the employ ment or use of an escape-valve applied to" the .i steam-cylinder, and arranged in such a man- 1 ner as to obviate any sudden increase of tension or pull on the brake chain, a contingency "Whielif frequentlv.i` `occurs `When i the train h etch hauststeai lacethe cylinder. 1

inostfdesira i le FEO l) understand and construct my invention, I Will proceed to describe it.

A represents a portion of the boiler of a locomotive, and B is a knee which is securely fastened to the boiler in front of the place Where the engineer stands. C is a guide` which 's also secured to the boiler some distance Ve rs. i) is a` spiral spring which ignee D. and ifi 1s a sliding ba-r, .er part or which is ot' cylindrical form i 'ro natieumsesinneal in the are to fully and passes through the spring D and knee B, the upper part of said bar being square in its transverse section and passing through the guide C, the square portion of the bar E preventing it from turning.

F is a toothed Wheel which is fitted in a suitable opening in the upper part of the slidngwbar E, 'theaxis a of the said:Wheelhaving` .i ajleveror handle,G,securedftol t clearlyl in the `d`rawi1ng5aand IH t lar bar which is attached tothe slidinghbaril, jandfprovidedwith notches b,`tiniany oneI f Whiehhthe leverlorhaudle may.. be `1 fitted` secured. i

as showin K, the latter having a rack, L, on its upper end, into which the toothed wheel F gears. The rack L and valvesteln K slide parallel with the bar E, the rack working in the guide U and the stem in the stut'ling-box c.

M is a tube which extends from the top of the boiler A to the steam chest I, and is provided With a cock, e, and N is a tube Which Iforrnsa communication between the lowerpart .p ofthe :steam-chest Land ahorizontal c vlinden;` `O,xbeloW the platformen foot-board P. e Qis i a tnbe which formsa communication between the inner part of thecyzlinder` 0 `and boiler A.

Inthe lower part of the cylinder O, :near its inner end, there is a cock, R; 1 i

S is a chain which is attached to thelovver i `endet' the sliding bar E and extends iunderneath a pulley, f, in the platform l?, and is secured to one end of a rod, T, the opposite end of said rod being connected to a lever, U, the fulcrum g of Which is in a tixture, 7L, under neath the tender of the locomotive.

V is an escape-valve Which is connected to a lever or arm, 1', and is applied to the under side of the cylinder O. The arm t' is connected with a spiral spring.;7 WV, having a screwrod,j, attached to it, on which an adjusting nut7 le, is placed to regulate the tension of the spring lV. This valve V is arranged similar `I isa small steam chest fastened to `theouter `lendlofi` the linee B, and:iprovidedlmfith astnf- `ting-htm, c,.at its top, `and a nut, dyiat; itsbot- 3 toi`n,:the nut serving asa valveseat, as Welljas `for a fastening to securethe steam-chestito the fkuee. .i l n Vlithin` the steam-chest I ithereisplaoedia" i i drop or slide valve, J, fitted on a rod or stern,

I. LYNDE.

Fruit Drier.

Paremd April 19, 1864,

` No.y 42,386.

mI-NSSSS;

N4 PETERS. Phuhrlithomvhen washington. ILC, 

